Are arc flash calculations required for control panels containing only finger-safe terminals and insulated cable?
At this time, most experts recommend calculations for such panels because of field experiences. Although IP20 grade finger-safe devices do minimize the probability of incidental contact, they are likely to be compromised in the presence of an arc flash explosion. If there is a possibility of an arc being established, you will need to take the steps necessary to protect workers from the potential hazard.
